iindlela Optical multiplexing kunye nomtshato wabo kwi-chip kunyeunxibelelwano lwefiber optical: uphononongo
Ubuchule bokuphinda-phinda be-Optical sisihloko sophando olungxamisekileyo, kwaye abaphengululi kwihlabathi liphela benza uphando olunzulu kweli candelo.Ukutyhubela iminyaka, iitekhnoloji ezininzi ze-multiplex ezifana ne-wavelength division multiplexing (WDM), i-mode division multiplexing (MDM), i-space division multiplexing (SDM), i-polarization multiplexing (PDM) kunye ne-orbital angular momentum multiplexing (OAMM) zicetywayo.I-teknoloji ye-Wavelength division multiplexing (WDM) yenza ukuba izibonakaliso ezimbini okanye ngaphezulu ze-optical ze-wavelengths ezahlukeneyo zihanjiswe ngaxeshanye nge-fiber enye, zisebenzisa ngokupheleleyo iimpawu eziphantsi zokulahleka kwefiber kuluhlu olukhulu lwamaza.Ithiyori yaqala ukucetywa nguDelange kwi-1970, kwaye bekungekho kude kube yi-1977 ukuba uphando oluyisiseko lwe-teknoloji ye-WDM lwaqala, olujolise ekusebenziseni amanethiwekhi onxibelelwano.Ukususela ngoko, kunye nophuhliso oluqhubekayo lwei-fiber optical, umthombo wokukhanya, isixhobo sokufotakunye nezinye iinkalo, ukuhlola kwabantu iteknoloji ye-WDM nako kuye kwakhawuleza.Inzuzo ye-polarization multiplexing (PDM) kukuba inani lokudluliselwa kwesignali linokuphindaphindwa, kuba izibonakaliso ezimbini ezizimeleyo zingahanjiswa kwindawo ye-orthogonal polarization yokukhanya okufanayo, kwaye iziteshi ezimbini ze-polarization ziyahlukana kwaye zichongiwe ngokuzimeleyo kwindawo yokukhanya. isiphelo sokufumana.
Njengoko imfuno yamazinga aphezulu edatha iqhubeka ikhula, iqondo lokugqibela lenkululeko yokuphindaphinda, indawo, ifundwe ngokunzulu kule minyaka ilishumi idlulileyo.Phakathi kwabo, i-mode division multiplexing (MDM) iveliswa ikakhulu ngabathumeli be-N, ebonwa yi-spatial mode multiplexer.Ekugqibeleni, isignali exhaswa yimodi yendawo idluliselwa kwi-fiber-mode ephantsi.Ngexesha lokusasazwa komqondiso, zonke iindlela kubude obufanayo ziphathwa njengeyunithi ye-Space Division multiplexing (SDM) itshaneli enkulu, oko kukuthi, ziyanyuswa, zincitshiswe kwaye zongezwa ngaxeshanye, ngaphandle kokukwazi ukufikelela kwimowudi eyahlukileyo.Kwi-MDM, iicontours zesithuba ezahlukeneyo (oko kukuthi, iimilo ezahlukeneyo) zepateni zabelwe amajelo ahlukeneyo.Ngokomzekelo, ijelo lithunyelwa phezu komqadi welaser omile njengonxantathu, isikwere, okanye isangqa.Iimilo ezisetyenziswe yi-MDM kwizicelo zehlabathi zangempela zinzima kakhulu kwaye zineempawu ezizodwa zemathematika kunye nezomzimba.Le teknoloji ngokuqinisekileyo yeyona nkqubela phambili yotshintsho kwifiber optic data transmission ukusukela ngeminyaka yoo-1980.Ithekhnoloji ye-MDM ibonelela ngesicwangciso esitsha sokuphumeza amajelo amaninzi kunye nokwandisa umthamo wekhonkco usebenzisa i-carrier ye-wavelength enye.I-Orbital angular momentum (OAM) luphawu olubonakalayo lwamaza ombane we-electromagnetic apho umendo wosasazo umiselwa yi-helical phase wavefront.Ekubeni eli nqaku lingasetyenziselwa ukuseka amajelo amaninzi ahlukeneyo, i-wireless orbital angular momentum multiplexing (i-OAMM) inokunyusa ngokufanelekileyo izinga lokudluliselwa kwi-high-to-point transmissions (efana ne-wireless backhaul okanye phambili).
Ixesha lokuposa: Apr-08-2024